scholarly journals Vitamin D Status Is Associated with Modifiable Lifestyle Factors in Pre-Adolescent Children Living in Urban Kuala Lumpur, Malaysia

Nutrients ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 2175
Author(s):  
Winnie Siew Swee Chee ◽  
Chung Yuan Chang ◽  
Kanimolli Arasu ◽  
Soon Yee Wong ◽  
Shu Hwa Ong ◽  
...  
Keyword(s):  
Vitamin D ◽  
Body Composition ◽  
Dietary Intake ◽  
Surface Area ◽  
Body Surface Area ◽  
Body Surface ◽  
Lifestyle Factors ◽  
Vitamin D Status ◽  
Kuala Lumpur ◽  
Modifiable Lifestyle Factors

Studies on vitamin D status and its determinants in growing children in countries with ample sunshine such as Malaysia have been limited. The aim of our study was to determine factors associated with serum 25(OH)D concentrations such as lifestyle, dietary intake, anthropometry, and body composition in 243 pre-adolescent Malaysian children from low-income families living in Kuala Lumpur. This cross-sectional study measured bone density and body composition using dual-energy X-ray absorptiometry (DXA), while serum 25(OH)D was measured using LC–MS/MS. Time spent outdoors, body surface area exposed to sunlight, dietary intake, and physical activity level were assessed using questionnaires. Multiple linear regression and stepwise analysis were performed to identify significant predictors for serum 25(OH)D. About 69.4% had 25(OH)D < 50 nmol/L, and 18.9% were vitamin-D-deficient with 25(OH)D < 30 nmol/L. Girls had a nine-fold higher prevalence of vitamin D deficiency than boys. Body surface area exposed to sunlight, Sun Index, and fat mass were significant predictors of 25(OH)D concentrations in this population. Modifiable lifestyle factors such as sun exposure and reducing obesity are important public health guidance to ensure optimal vitamin D status in these children.

Discrepancy Between Body Surface Area and Body Composition in Cancer

2013 ◽  
Vol 65 (8) ◽  
pp. 1151-1156 ◽  
Author(s):  
Nicole Stobäus ◽  
Susanne Küpferling ◽  
Marie-Luise Lorenz ◽  
Kristina Norman
Keyword(s):  
Body Composition ◽  
Surface Area ◽  
Body Surface Area ◽  
Body Surface

Size of the exposed body surface area, skin erythema and body mass index predict skin production of vitamin D

2015 ◽  
Vol 149 ◽  
pp. 224-229 ◽  
Author(s):  
Amra Osmancevic ◽  
Martin Gillstedt ◽  
Kerstin Landin-Wilhelmsen ◽  
Ann-Marie Wennberg Larkö ◽  
Olle Larkö ◽  
...  
Keyword(s):  
Body Mass Index ◽  
Vitamin D ◽  
Surface Area ◽  
Body Surface Area ◽  
Body Mass ◽  
Body Surface ◽  
Skin Erythema

Body Composition Adjusted Dosing of Gemcitabine-Nab-Paclitaxel in Pancreatic Cancer Does Not Predict Toxicity Compared to Body Surface Area Dosing

2019 ◽  
Vol 71 (4) ◽  
pp. 624-628 ◽  
Author(s):  
Julia Freckelton ◽  
Daniel Croagh ◽  
Darcy Quinn Holt ◽  
Adrian Fox ◽  
Rachel Wong ◽  
...  
Keyword(s):  
Pancreatic Cancer ◽  
Body Composition ◽  
Surface Area ◽  
Body Surface Area ◽  
Body Surface

scholarly journals Impact of Seasonal Variation in Association with Other Factors on Vitamin D Status among Mangalorean Population

2021 ◽  
Vol 10 (9) ◽  
pp. 589-594
Author(s):  
Tirthal Rai ◽  
Mayur Rai ◽  
Janice Dsa ◽  
Srinidhi Rai ◽  
Sushith P ◽  
...  
Keyword(s):  
Risk Factors ◽  
Body Mass Index ◽  
Vitamin D ◽  
Seasonal Variation ◽  
Vitamin D Deficiency ◽  
Surface Area ◽  
Body Surface Area ◽  
Body Mass ◽  
Body Surface ◽  
Endocrine Society

BACKGROUND India has plenty of sunshine, yet people here are deprived of vitamin D – ‘sunshine vitamin’. According to endocrine society of India, vitamin D levels of < 20 ng / mL is considered to be vitamin D deficiency. The objective of the study was to evaluate seasonal variation of vitamin D and give an insight on risk factors such as age, gender, diet, body mass index, occupation, skin complexion and body surface area exposure on vitamin D level. METHODS The study was conducted in a tertiary hospital in Mangalore on 109 apparently healthy individuals. The same cohort of subjects was followed for two seasons - summer and winter. Serum was collected and analysed for 25-OH vitamin D, calcium and phosphorous. Skin color was assessed according to the Fitzpatrick classification, questionnaire was given to assess the approximate time limit of sun exposure in a day along with the exposed areas to sunlight and anthropometric parameters such as height and weight were measured using standard guidelines. Body mass index (BMI) was calculated. Comparison of mean vitamin D along with the factors influencing them in both seasons was done using paired t test. Inferential statistical analysis was done using chi-square test. Pearson correlation test was also done. Statistical significance was considered at P < 0.05. RESULTS Mean vitamin D was higher in summer (15.14 ± 5.62) as compared to winter (14.42 ± 5.38) irrespective of the risk factors. Vitamin D deficiency was highest in older age group (83.9 %), females (84.6 %), overweight (100 %), vegetarians (92.3 %), office workers (91.2 %), both complexions and those exposed with < 1.5 hours of sunlight (97.2 %). Vitamin D deficiency was also more prevalent in those with lesser exposed body surface area. CONCLUSIONS Vitamin D deficiency was statistically most common in winter than summer. It was seen correlating with majority of the risk factors, except skin complexion and among the confounding factors. The key for vitamin D production in this population was maximum body surface area exposure (face, hand, leg and feet) to sunlight for more than 2.5 hours, yet these subjects were vitamin D deficient. However, they did not manifest with any skeletal or extra-skeletal morbidity. Thus, concluding that a reliable cut off value for reference range of vitamin D should be set in this population in order to abstain from excess vitamin D treatment. KEY WORDS Sunshine Vitamin, Vitamin D Deficiency, Mangalore, Skin Colour, Sunlight Exposure, Body Surface Area, Summer, Winter

scholarly journals Body composition characteristics and body surface area

2013 ◽  
Vol 22 ◽  
pp. 34
Author(s):  
Aija Geriņa-Bērziņa ◽  
Uldis Vikmanis ◽  
Gunta Purkalne ◽  
Silvija Umbraško
Keyword(s):  
Body Composition ◽  
Surface Area ◽  
Body Surface Area ◽  
Body Surface ◽  
Composition Characteristics
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